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Finding the Fourth Proportional to 672,870.75, 928,558.44 and 371,064.75

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Solution

The fourth proportional to 672,870.75, 928,558.44 and 371,064.75 is: 512,067.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,870.75 : 928,558.44 = 371,064.75 : x
  2. Step 2: Convert to fraction form
    672,870.75/928,558.44 = 371,064.75/x
  3. Step 3: Cross multiply
    672,870.75x = 928,558.44 × 371,064.75
  4. Step 4: Simplify right side
    672,870.75x = 344,555,305,398.99
  5. Step 5: Solve for x
    x = 344,555,305,398.99/672,870.75
  6. Step 6: Final answer
    x = 512,067.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.